support Node 20.x

[thescientist13]

Summary

Would like to be able to extend the GitHub Actions matrix to include Node 20.x

Details

Had tried this but kept getting this issue on Windows only :/
https://github.com/thescientist13/gallinago/actions/runs/7317046295/job/19932206454

  1 failing

  1) CLI Fixture
       default options with relative path
         "before all" hook in "default options with relative path":
     Error: done() called multiple times in hook <CLI Fixture default options with relative path "before all" hook in "default options with relative path"> of file D:\a\gallinago\gallinago\test\cases\runner-cli\runner.cli.spec.js; in addition, done() received error: Error: read ECONNRESET
    at TCP.onStreamRead (node:internal/stream_base_commons:217:20) {
  errno: -4077,
  code: 'ECONNRESET',
  syscall: 'read',
  uncaught: true
}
      at process.emit (node:events:514:28)
      at process._fatalException (node:internal/process/execution:178:25)

Interestingly, all the assertions are actually passing

  CLI Fixture
    default options with relative path
      1) "before all" hook in "default options with relative path"
      √ should have created the output folder
      √ should only copy 3 files
      √ should have an .editorconfig file
      √ should have an .eslintrc file
      √ should have .mocharc file
      √ should delete the output directory when told
    setup with setupFiles
      √ should have created the output folder
      √ should only copy 4 files
      √ should have an .editorconfig file
      √ should have an .eslintrc file
      √ should have .mocharc file
      √ should have webcomponents-bundle.js file
      √ should delete the setup file we provided